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linux/drivers/staging/axis-fifo
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Ovidiu Panait fe4e81979a staging: axis-fifo: add debugfs interface for dumping fifo registers 
For debugging purposes, add a simple, read-only debugfs interface to dump
the following fifo registers:
ISR  - Interrupt Status Register
IER  - Interrupt Enable Register
TDFV - Transmit Data FIFO Vacancy
RDFO - Receive Data FIFO Occupancy

$ cat /sys/kernel/debug/43c00000.axi_fifo_mm_s/regs
 isr: 0x00000000
 ier: 0xfe000000
tdfv: 0x000001fc
rdfo: 0x00000000

Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@gmail.com>
Link: https://lore.kernel.org/r/20250720183833.3570345-2-ovidiu.panait.oss@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-07-24 11:30:03 +02:00
..
axis-fifo.c staging: axis-fifo: add debugfs interface for dumping fifo registers 2025-07-24 11:30:03 +02:00
axis-fifo.txt staging: axis-fifo: avoid parsing ignored device tree properties 2019-11-03 13:09:01 +01:00
Kconfig staging: axis-fifo: add unspecified HAS_IOMEM dependency 2019-12-17 09:22:11 +01:00
Makefile staging: add missing SPDX lines to Makefile files 2019-04-03 11:10:15 +02:00
README staging: add driver for Xilinx AXI-Stream FIFO v4.1 IP core 2018-07-24 14:14:13 +02:00

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